#1D488F#1D488F

#1D488F is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.4% C 0.127 H 260.0°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#1D488F
RGB	rgb(29, 72, 143)
HSL	hsl(217, 66%, 34%)
HSV	hsv(217, 80%, 56%)
CMYK	cmyk(79.7%, 49.7%, 0%, 43.9%)
CIE-LAB	lab(31.53, 12.24, -43.55)
CIE-LCH	lch(31.53, 45.23, 285.69°)
OKLab	oklab(41.37% -0.0221 -0.1252)
OKLCH	oklch(41.37% 0.127 260)
XYZ	xyz(7.7802, 6.8782, 26.8989)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D488F #8F641D

analogous

#1D818F #1D488F #2B1D8F

triadic

#1D488F #8F1D48 #488F1D

tetradic

#1D488F #8F1D81 #8F641D #1D8F2B

square

#1D488F #8F1D81 #8F641D #1D8F2B

split-complementary

#1D488F #8F2B1D #818F1D

monochromatic

#081529 #132E5C #1D488F #2762C2 #4C82DB

Accessibility & contrast

On white

8.84

#1D488F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1D488F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D488F

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D488F	#FFFFFF	#000000	##FFFFFF
##1D488F	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5092

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d488f;
/* rgb */ color: rgb(29, 72, 143);
/* oklch */ color: oklch(41.4% 0.127 260.0);

Tailwind

colors: {
  custom: {
    50: '#6c7ab0',
    500: '#1d488f',
    950: '#000000',
  },
}

SCSS

$custom: #1d488f;
$custom-light: #6c7ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d488f",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 143
  },
  "hsl": {
    "h": 217.368,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41365,
    "c": 0.12711,
    "h": 260
  },
  "luminance": 0.06879
}

Semantic roles & 50–950 ramp

primary

#1D488F

secondary

#BD924B

accent

#A93FE9

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1D488F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →